The visual system in migraine

Drummond, P.D. (1996) The visual system in migraine. Cephalalgia, 16 (8). p. 523.

Abstract

The visual system participates in migraine in various ways: bright or flashing lights occasionally induce attacks; a band of flashing lights followed by visual loss spreading across the visual field during the migraine aura suggests an abnormal activation followed by deactivation of neurons in the visual cortex; painful photophobia, blurred vision and a sense of glare or dazzle sometimes precede and usually accompany headache; and perceptual disturbances often persist interictally, particularly between episodes of migraine with aura.